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Report for Clinical Trial NCT00705679

Developed by Shray Alag, 2020.
SNP Clinical Trial Gene

Phase 2B Safety and Effectiveness Study of Tenofovir 1% Gel, Tenofovir Disproxil Fumarate Tablet and Emtricitabine/Tenofovir Disoproxil Fumarate Tablet for the Prevention of HIV Infection in Women

A new approach to HIV prevention currently being studied includes the use of microbicides, substances that kill microbes. Tenofovir disoproxil fumarate (TDF) and emtricitabine/tenofovir disoproxil fumarate (FTC/TDF) are oral, FDA-approved, anti-HIV drugs, and tenofovir gel is an experimental microbicide. The purpose of this study is to determine the safety and effectiveness of daily tenofovir 1% gel compared to a vaginal placebo gel, and the safety and effectiveness of oral TDF and oral FTC/TDF compared to an oral placebo in preventing HIV infection among women at risk for sexually transmitted infections.

NCT00705679 HIV Infections
MeSH: Infection HIV Infections Acquired Immunodeficiency Syndrome

6 Interventions

Name: Emtricitabine/tenofovir disoproxil fumarate

Description: 200 mg/300 mg tablet

Type: Drug

2

Name: Emtricitabine/tenofovir disoproxil fumarate placebo

Description: placebo tablet

Type: Drug

1 3

Name: Tenofovir disoproxil fumarate

Description: 300 mg tablet

Type: Drug

1

Name: Tenofovir disoproxil fumarate placebo

Description: placebo tablet

Type: Drug

2 3

Name: Tenofovir 1% vaginal gel

Description: 1 gm/100 ml of 1% gel

Type: Drug

4

Name: Tenofovir placebo

Description: placebo gel

Type: Drug

5


Primary Outcomes

Description: Participants were followed for up to 30 months. Person-years measures the amount of time for each participant, in years, from the date of enrollment to the date of the first HIV-positive test result if HIV-infected during follow-up or to the date of the last HIV-negative test result on follow-up if not HIV-infected during follow-up.

Measure: Person-years of Follow-up of Tenofovir 1% Gel and Vaginal Placebo Gel Arms

Time: For up to 30 months of follow-up

Description: Participants were followed for up to 30 months. Participants were tested monthly for HIV-1 and positive rapid test results were confirmed by means of an enzyme-linked immunosorbent assay (EIA) and subsequent Western blotting (WB).

Measure: Number of HIV-1 Infections of Tenofovir 1% Gel and Vaginal Placebo Gel Arms

Time: For up to 30 months of follow-up

Description: This is the number of HIV-1 infections divided by the amount of person-years of follow-up time to HIV-1 infection status, multiplied by 100 (per 100 person-years).

Measure: Incidence Rate of HIV-1 Infections of Tenofovir 1% Gel and Vaginal Placebo Gel Arms

Time: For up to 30 months of follow-up

Description: Participants were followed for up to 30 months. Person-years measures the amount of time for each participant, in years, from the date of enrollment to the date of the first HIV-positive test result if HIV-infected during follow-up or to the date of the last HIV-negative test result on follow-up if not HIV-infected during follow-up. Note that the data for both of these arms were censored on the date when sites were asked to discontinue treatment in the oral TDF group.

Measure: Person-years of Follow-up of Oral TDF and Oral Placebo Arms

Time: For up to 30 months of follow-up

Description: Participants were followed for up to 30 months. Participants were tested monthly for HIV-1 and positive rapid test results were confirmed by means of an enzyme-linked immunosorbent assay (EIA) and subsequent Western blotting (WB).

Measure: Number of HIV-1 Infections of Oral TDF and Oral Placebo Arms

Time: For up to 30 months of follow-up

Description: This is the number of HIV-1 infections divided by the amount of person-years of follow-up time to HIV-1 infection status, multiplied by 100 (per 100 person-years).

Measure: Incidence Rate of HIV-1 Infections of Oral TDF and Oral Placebo Arms

Time: For up to 30 months of follow-up

Description: Participants were followed for up to 30 months. Person-years measures the amount of time for each participant, in years, from the date of enrollment to the date of the first HIV-positive test result if HIV-infected during follow-up or to the date of the last HIV-negative test result on follow-up if not HIV-infected during follow-up.

Measure: Person-years of Follow-up of Oral TDF-FTC and Oral Placebo Arms

Time: For up to 30 months of follow-up

Description: Participants were followed for up to 30 months. Participants were tested monthly for HIV-1 and positive rapid test results were confirmed by means of an enzyme-linked immunosorbent assay (EIA) and subsequent Western blotting (WB).

Measure: Number of HIV-1 Infections of Oral TDF-FTC and Oral Placebo Arms

Time: For up to 30 months of follow-up

Description: This is the number of HIV-1 infections divided by the amount of person-years of follow-up time to HIV-1 infection status, multiplied by 100 (per 100 person-years).

Measure: Incidence Rate of HIV-1 Infections of Oral TDF-FTC and Oral Placebo Arms

Time: For up to 30 months of follow-up

Description: This measure describes the number of participants with elevated serum creatinine levels, the only safety outcome of concern where a significant difference was detected between an active arm and the corresponding placebo arm.

Measure: Extended Safety of Daily Tenofovir 1% Gel, Oral TDF, and Oral FTC/TDF in Women at Risk for Sexually Transmitted HIV Infection Based on Occurrence of Grade 2, 3, and 4 Adverse Events

Time: Throughout study, up to 2.5 years

Secondary Outcomes

Description: The primary resistance mutations for the study were pre-defined as K65R and K70E (which confer resistance to TDF), and M184I and M184V (which confer resistance to FTC), for their potential to cause a decrease in susceptibility to the study drug. K65R, K70E, and M184I were not detected in HIV-1 from any HIV-1 seroconverters while on study product. The number of HIV-1 seroconverters while on study with the M184V resistance mutation are reported for this outcome measure.

Measure: Frequency of HIV-1 Drug Resistance in Women Who Acquire HIV-1 Infection While Using Study Product

Time: Throughout study, up to 2.5 years

Purpose: Prevention

Allocation: Randomized

Parallel Assignment


There are 4 SNPs

SNPs


1 K65R

The primary resistance mutations for the study were pre-defined as K65R and K70E (which confer resistance to TDF), and M184I and M184V (which confer resistance to FTC), for their potential to cause a decrease in susceptibility to the study drug. --- K65R ---

K65R, K70E, and M184I were not detected in HIV-1 from any HIV-1 seroconverters while on study product. --- K65R ---


2 K70E

The primary resistance mutations for the study were pre-defined as K65R and K70E (which confer resistance to TDF), and M184I and M184V (which confer resistance to FTC), for their potential to cause a decrease in susceptibility to the study drug. --- K65R --- --- K70E ---

K65R, K70E, and M184I were not detected in HIV-1 from any HIV-1 seroconverters while on study product. --- K65R --- --- K70E ---


3 M184I

The primary resistance mutations for the study were pre-defined as K65R and K70E (which confer resistance to TDF), and M184I and M184V (which confer resistance to FTC), for their potential to cause a decrease in susceptibility to the study drug. --- K65R --- --- K70E --- --- M184I ---

K65R, K70E, and M184I were not detected in HIV-1 from any HIV-1 seroconverters while on study product. --- K65R --- --- K70E --- --- M184I ---


4 M184V

The primary resistance mutations for the study were pre-defined as K65R and K70E (which confer resistance to TDF), and M184I and M184V (which confer resistance to FTC), for their potential to cause a decrease in susceptibility to the study drug. --- K65R --- --- K70E --- --- M184I --- --- M184V ---

The number of HIV-1 seroconverters while on study with the M184V resistance mutation are reported for this outcome measure.. Inclusion Criteria: - Willing to provide adequate locator information - Sexually active, defined as having vaginal intercourse at least once in the 3 months prior to screening - Agree to not participate in other research studies involving drugs, medical devices, or vaginal products for duration of study. --- M184V ---



HPO Nodes